:root {
  --bg: #0a0d14;
  --bg-soft: #0f1522;
  --card: #151c2c;
  --card-2: #1a2236;
  --card-edge: rgba(212, 168, 92, .16);
  --rule: rgba(212, 168, 92, .13);      /* 发丝线：只用于真正分隔信息的地方 */
  --gold: #d4a85c;
  --gold-bright: #f0cb8a;
  --jade: #8fd0a0;
  --text: #ece7da;
  --text-dim: #98a1b4;
  --serif: "Palatino", "Songti SC", "STSong", Georgia, serif;
  --sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg); color: var(--text); font-family: var(--sans);
  line-height: 1.75; -webkit-font-smoothing: antialiased; position: relative;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: radial-gradient(rgba(212, 168, 92, .07) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 25%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 25%, transparent 72%);
}
body > * { position: relative; z-index: 1; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1060px; margin: 0 auto; padding: 0 28px; }


header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 13, 20, .82); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 20px; }
.brand { display: flex; align-items: baseline; gap: 10px; font-family: var(--serif); }
.brand .en-name { font-size: 20px; letter-spacing: .045em; color: var(--gold-bright); }
.brand .zh-name { font-size: 14px; color: var(--text-dim); letter-spacing: .3em; }
.nav-right { display: flex; align-items: center; gap: 26px; }
nav.links { display: flex; gap: 28px; font-size: 14.5px; }
nav.links a { color: var(--text-dim); transition: color .22s; letter-spacing: .02em; position: relative; }
nav.links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent); transition: right .28s ease;
}
nav.links a:hover { color: var(--gold-bright); }
nav.links a:hover::after { right: 0; }
@media (max-width: 760px) { nav.links { display: none; } }
/* ---------- language switcher (globe + dropdown) ---------- */
.lang-switch { position: relative; }
.lang-switch > summary {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 36px; padding: 0 14px 0 12px; border-radius: 999px;
  border: 0; background: rgba(212, 168, 92, .08);
  font-family: var(--sans); font-size: 13px; letter-spacing: .02em;
  color: var(--gold); cursor: pointer; list-style: none; white-space: nowrap;
  transition: background .22s, color .22s;
}
.lang-switch > summary .lang-cur { line-height: 1; }
.lang-switch > summary::-webkit-details-marker { display: none; }
.lang-switch > summary::marker { content: ""; }
.lang-switch > summary svg { width: 17px; height: 17px; display: block; flex: none;
  transition: transform .45s cubic-bezier(.3,.7,.3,1); }
.lang-switch > summary:hover svg,
.lang-switch[open] > summary svg { transform: rotate(-18deg); }
.lang-switch > summary:hover,
.lang-switch[open] > summary { background: rgba(212, 168, 92, .17); color: var(--gold-bright); }
.lang-switch > summary:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
/* 浮层需要自己的表面才能浮在内容之上——这是少数该保留的立体元素 */
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; z-index: 60;
  min-width: 170px; padding: 8px; display: grid; gap: 2px;
  /* 七种语言，矮屏幕上放不下就让菜单自己滚，别顶出视口 */
  max-height: min(70vh, 340px); overflow-y: auto; overscroll-behavior: contain;
  background: rgba(21, 28, 44, .97); backdrop-filter: blur(14px);
  border: 1px solid var(--rule); border-radius: 12px;
  box-shadow: 0 18px 44px rgba(0, 0, 0, .55);
}
.lang-menu a {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 9px 12px; border-radius: 8px; white-space: nowrap;
  font-size: 14px; color: var(--text-dim);
  transition: background .18s, color .18s;
}
.lang-menu a:hover { background: rgba(212, 168, 92, .12); color: var(--gold-bright); }
.lang-menu a[aria-current] { color: var(--gold-bright); }
.lang-menu a[aria-current]::after { content: "✓"; font-size: 12px; color: var(--gold); }
/* 窄屏只留图标，别把导航挤爆 */
@media (max-width: 480px) {
  .lang-switch > summary { width: 36px; padding: 0; }
  .lang-switch > summary .lang-cur { display: none; }
}
@media (prefers-reduced-motion: no-preference) {
  .lang-switch[open] .lang-menu { animation: langMenuIn .16s ease-out; }
  @keyframes langMenuIn { from { opacity: 0; transform: translateY(-5px); } }
}

.product { padding: 66px 0 88px; }
.grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 58px; align-items: start; }

/* ---- left column ---- */
/* 封面图本身就是一个完整的对象，不需要再套一个框 */
.cover { position: relative; border-radius: 6px; overflow: hidden; }
.cover img { width: 100%; display: block; }
.shots-note { margin-top: 16px; font-size: 13px; color: var(--text-dim); text-align: center; }
.shots-note a { color: var(--gold); }
.shots-note a:hover { text-decoration: underline; }

/* 参数表：去掉外层卡片，只保留行间发丝线——这些线在左右分栏的键值对之间
   真的帮助视线横向对位，是信息而不是装饰 */
.facts { margin-top: 34px; }
.fact {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: 14px;
}
.fact:first-child { border-top: 1px solid var(--rule); }
.fact .k { color: var(--text-dim); letter-spacing: .1em; white-space: nowrap; text-transform: uppercase; font-size: 11px; }
.fact .v { color: var(--text); text-align: right; }

/* 标签：去掉药丸描边和底色，用间隔点分隔 */
.tags {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 0; margin-top: 22px;
  font-size: 12.5px; letter-spacing: .04em; color: var(--gold);
}
.tags span:not(:last-child)::after {
  content: "·"; color: var(--text-dim); opacity: .55;
  margin: 0 10px; display: inline-block;
}

/* 信任条：整块卡片去掉，变成一行安静的说明文字 */
.trust {
  margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--rule);
  display: flex; gap: 6px 22px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--text-dim);
}
.trust span::before { content: "✓ "; color: var(--gold); }

/* ---- right column ---- */
.kicker { font-size: 12px; letter-spacing: .3em; text-transform: uppercase; color: var(--gold); }
.title-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 10px; }
h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(30px, 4vw, 40px); margin: 0; }
/* 状态徽章：保留填充（它真的在编码状态），但去掉描边 */
.pill {
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase; font-weight: 600;
  padding: 5px 11px; border-radius: 4px; border: 0;
  color: var(--jade); background: rgba(143, 208, 160, .13);
  white-space: nowrap;
}
/* 价格行已移除（不再公开批发定价），这条线接管原来的分隔作用 */
.desc { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--rule);
  color: var(--text-dim); font-size: 15px; }

/* 说明块：去掉卡片，靠留白和小标题分组。卡片消失后留白要加大，
   否则两段会糊在一起 */
.box { margin-top: 38px; padding: 0; background: none; border: 0; }
.box h2 {
  font-size: 11.5px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 14px; font-weight: 600;
}
.box ul { list-style: none; }
.box ul li { padding: 6px 0 6px 26px; position: relative; font-size: 14.5px; color: var(--text); }
.box ul li::before { content: "✓"; position: absolute; left: 2px; color: var(--gold); }
.box ol { list-style: none; counter-reset: step; }
.box ol li { counter-increment: step; padding: 8px 0 8px 34px; position: relative; font-size: 14.5px; color: var(--text); }
/* 序号去掉描边圆圈，只留数字 */
.box ol li::before {
  content: counter(step); position: absolute; left: 2px; top: 8px;
  font-family: var(--serif); font-size: 15px; line-height: 1.75;
  color: var(--gold); font-variant-numeric: tabular-nums;
}
.box ol li b { color: var(--gold-bright); font-weight: 500; }
.box .mail { color: var(--gold-bright); word-break: break-all; }

/* 全页唯一保留视觉重量的元素——它是这个页面存在的目的 */
.cta {
  display: block; text-align: center; margin-top: 40px; padding: 17px 20px; border-radius: 6px;
  background: var(--gold);
  color: #17110a; font-size: 16px; font-weight: 600; letter-spacing: .03em;
  transition: background .2s, transform .2s;
}
.cta:hover { background: var(--gold-bright); transform: translateY(-1px); }
.cta:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 3px; }
/* 次要操作：扁平填充，不跟主按钮抢 */
.alt {
  display: block; text-align: center; margin-top: 10px; padding: 14px 20px; border-radius: 6px;
  background: rgba(102, 192, 244, .09); border: 0;
  color: #9fc9e4; font-size: 14.5px; transition: background .2s, color .2s;
}
.alt:hover { background: rgba(102, 192, 244, .16); color: #d8ecfa; }
.alt:focus-visible { outline: 2px solid rgba(102, 192, 244, .8); outline-offset: 3px; }
.fine { margin-top: 20px; font-size: 12.5px; color: var(--text-dim); text-align: center; }

footer {
  border-top: 1px solid var(--rule); background: var(--bg-soft);
  padding: 32px 0 38px; text-align: center; font-size: 13px; color: var(--text-dim);
}
footer .line { margin-top: 5px; }
footer a { color: var(--gold); }

@media (prefers-reduced-motion: reduce) {
  .cta, .alt, nav.links a, .lang-switch > summary svg { transition: none; }
  .cta:hover { transform: none; }
}

@media (max-width: 820px) {
  .grid { grid-template-columns: 1fr; gap: 38px; }
  .product { padding: 40px 0 62px; }
}